Joe E.

MrPLC Member
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Everything posted by Joe E.

  1. Speed Dec Issue & Siemens PLC info

    Unfortunately, that's not an easy question to answer. How long has the PLC been in service? That will help narrow it down but won't be foolproof. I'm not that familiar with the ET200S processors, but to program an S7 processor, you will need Step 7 for either Simatic Manager or Step 7 for TIA Portal. Do you have a source code file for the press? That would tell you which software package you need but not necessarily the version. Uploading from the PLC to your PC will give you the code itself but no symbols or comments. Diagnosing issues may not be easy at that point. As for your problem, it sounds like a setting changed somewhere. Is there an HMI on the machine? If so, I would go through all of the screens looking for a setting that could change the step per button push. If you don't have an HMI or if you can't find a setting, then you may need the software. Is the company that built the machine still around? If so, I would contact them for help.
  2. Studio 5000 and different PLC versions

    For versions 13 and 15, I used the DVD that I inherited from my predecessor. The other versions were downloaded from their software center. In case it makes a difference, we're using the standard version of RSLogix/Studio 5000. The downloads can be found here: https://download.rockwellautomation.com/webupdates/enter.aspx You will probably need a Rockwell account and maybe a TechConnect support contract to download other versions but your license will activate all of them once they're installed. If you don't have a support contract and it won't let you download what you need, contact your local distributor.  
  3. Studio 5000 and different PLC versions

    I looked at the directory sizes on my hard drive. It looks like my installation takes a total of about 15.5Gb for all of my Rockwell Software. That includes: RSLogix 5 RSLogix 500 RSLogix/Studio 5000 v13,15,16,17,18,19,20,21,24,29,30, and 31  
  4. RsLogix Lookup Table programming Help

    Here's a quick-and-dirty example of a simple lookup in an ML1400 (I happen to be online with one making a change so I used some free registers). The thresholds in the GEQ/LES instructions can be hard-coded with literals and the sources of the MOV instructions can be variables if you want. The sources of the GEQ/LES can also be floating point registers. The numbers in the MOV source fields will need to be scaled based on the time base setting of the timer register you're using.        
  5. Panel View 800 Password Problems

    I don't have any experience with Micro 800s, but I know the Siemens HMIs (MP177/277s) have an option that's enabled by default to disable logging in if the user types in the wrong password too many times. By default it's 3 times and they don't have to be consecutive. To reset, you have to download the project to the HMI. Could the Micro 800 have something like that?  
  6. I'm not finding relevant results either. The best I can see to do is to either "repair" or uninstall-reinstall the software. If you have a support contract, I would suggest submitting a support request. If not, contact your distributor so they can help you do that.
  7. PLC Law

    ...or the other way 'round: plug in Ethernet cable to DH-485 port.   RS-232 cable to Profibus port... When that didn't work, they tried adding a null modem adapter, which they forgot to remove from the front of the processor... The processor is down low in the cabinet and not easy to see, so the next person to connect (yours truly...) didn't see the null modem adapter and plugged in the PC adapter, which instantly fried the PC adapter. The $500+ PC adapter became a paper weight. Sigh...
  8. Micrologix 1400

    You should see this:
  9. Can someone please help me finding this tag?

    I'm going to have to try that. I knew it worked within the code window; I didn't know it worked from within the interface area.
  10. 1746-INT4 Used for Position

    Here's their product page: https://www.amci.com/plc-automation-products/slc500-7500-series-ssi-ldt-interface-plc-module-allen-bradley/  
  11. 1746-INT4 Used for Position

    Look at the physical controller chassis to identify the exact module. I've seen some systems that have a 3rd-part module that's set up in the IO configuration as a TC module (AMCI resolver, for example).  
  12. What version of Studio are you using? What versions do you have installed? Where are you trying to create the project (on your hard drive, a flash drive, a network drive, etc.)? What's the exact error code? That may make it easier to find on their KnowledgeBase.
  13. I managed to get the 1400e software to install on my XP virtual machine, but we have v02.02.00 and it says the program was saved in a newer version. I then imported it into FT View studio on my 32 bit VM and archived it (I didn't know that was possible until you mentioned it). I don't have FT View Studio installed on any 64-bit machines, so the next step is yours. The archived .apa file is attached. Let me know if that works for you. The import process had this output:   3017Melt.apa
  14. Can someone please help me finding this tag?

    Click on "Network 1" in the code window and press Ctrl-F to open the search window. Then type in the name you're looking for. That will find where it's used in this FC.
  15. Ok. I found the install disks for the PV1400. Eight floppy disks. My floppy drive has been borrowed by a colleague. I should get it back tomorrow.
  16. VFD Analog output to LOGO!

    The spec sheets for mA output modules I've looked at indicate that they can drive their signal through a short with no problems. For example, the Point IO output will drive 4-20mA through 0-750 Ohms. I would verify that the drive's output can do the same thing. If so, you can connect a mA meter directly to the output. If you get a good 4-20mA signal at your meter, then you will need to use a shunt resistor on your 0-10V input to get any meaningful readings there.
  17. VFD Analog output to LOGO!

    If the drive's output is only 4-20mA, you're not going to get a good result wiring it to a 0-10V input without using a shunt resistor, as nehpets described. Can you reconfigure the PLC input to 4-20mA?
  18. The PLC5 uses RSLogix 5, which is a different software package that you can't download if you don't have a license. List price for an RSLogix 5 license was near $10,000 last time we looked. I generated a pdf report of the program with all options selected. The HMI uses PanelBuilder 1400. I don't have that installed any more but I can look for the install disks (they were 3.5" floppies, IIRC). 3017MELT.pdf
  19. Win 7-64 does not recognize cable 1747-UIC

    By the way, there's also an explanation on Rockwell's site in their Knowledgebase (Access level: Everyone, you need a free account) https://rockwellautomation.custhelp.com/app/answers/detail/a_id/449894  
  20. Storage of Various Cables, etc.

    I don't do field support, so my list may be different from yours. In my toolbox that I take out into the plant with my laptop: 1) Lockout padlocks 2) Basic electrical hand tools (strippers, side cutters, crimpers, etc.) 3) Screwdrivers (a Klein 11-in-1, an old 1/4" drive multi-tip driver with a bit set including the security TORX bit for AB locking door switches 4) Small 1/4" drive ratchet/socket set 5) Allen wrenches (metric & inch) 6) Linksys USB-LAN adapter for the occasional BOOTP/DHCP configuration when the built-in NIC won't work 7) Small 5-port desktop router with power supply 8) Long-ish Ethernet patch cable 9) 10' or so straight serial cable with null modem adapter, 9-25 pin adapter, and both gender changers 10) Keyspan USB-RS232 adapter with cable 11) Extension cord 12) M12-RJ45 Ethernet patch cable 13) various other small stuff I grab specific cables I need from our locker or from the shop including: 1) Siemens USB PC Adapter 2) UIC adapter for DH485 3) SLC150 adapter 4) Optical interface cable for AB light curtain controller 5) Watlow F4 RS232 cable (uses flying leads on one end) 6) Lenze cable (as needed, we have 2 different ones depending on which drive family) 7) AB 1203 adapter for connecting to drives 8) AB MicroLogix cable (9-pin to their mini-DIN) 9) DH+ Prosoft gateway with cable and power supply etc, etc, etc. The unused cables are coiled up neatly with velcro straps to keep them coiled up. They don't typically tangle up in the box in our locker. For the random and miscellaneous devices that use super-special serial cables (like Parker Compax or AB Ultramaster drives), I had our electrician build a double-ended 9-pin D-Sub adapter with the required connections/jumpers in it. I just put that adapter in line with my straight serial cable instead of needing a whole serial cable for each device. See also this post: http://forums.mrplc.com/index.php?/topic/11351-supplies-for-the-common-controls-engineer/  
  21. VFD Analog output to LOGO!

    What do you get when you measure the voltage at the drive's analog outputs with the PLC disconnected? Beyond that, I would need to dig into the manual for the drive, which I'm not able to do right now.
  22. VFD Analog output to LOGO!

    You may have a bad output on the drive. Is there another analog output available? Do you have a 0-10V source you can wire to the PLC just to verify it's right (after disconnecting the drive, of course)?  
  23. VFD Analog output to LOGO!

    Have you verified the configuration of the analog output in the drive? I'm not familiar with ABB hardware, but it could be that the analog output is disabled in a parameter or is configured to represent something else.
  24. Can any one help me

    The way I read it is that he's using relay outputs to switch the 9V. If they're really relay outputs, the voltage shouldn't matter (unless it's way too high, of course). Can you post a screenshot of the PLC code while it's executing?
  25. String Input

    I can't see in your screenshot, but it's probably importing the string value as the SINT[82] array, so each field contains the ASCII code for that character. In your example, "J" would be decimal 74, hex 0x4A. Do a Google search for ASCII tables to find a translation.